What is a flipper flapper?

Jane is.

She is not just an ordinary flipper flapper, she's a skilled flipper flapper.  If you think it has anything to do with the making of pancakes, sorry to disappoint you.  I am pretty sure a flipper flapper is a six-year-old that finds joy in arranging numbers. 

 

Jane calls sudoku "flip"  due to this book.  Flip is her new favorite pastime.

 

 

Fritz and Jane helping me with puzzle #205. It wasn't as hard as #160 which was on the board for a couple days.

 

Solved! Jane added "w"s for winner